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The circumference = Pai x Diameter = 3.14 x 4 = 12.56 cm

Q: What is circumference of a circle if the diameter is 4 cm?

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Given a circle with a diameter of 4, the circumference is: 12.6 (diameter x Pi = circumference).

Diameter of 2 cm radius circle is pi x r2 = 3.1416 x 4 cm2 = 12.5664 cm2 Circumference of 2 cm radius circle = pi x 2r = 3.1416 x 4 cm = 12.5664 cm

The circumference of a circle is the diameter times pi (3.141) so therefore a 4 meter circumference circle has a diameter of 1.273 m E.g. 4 / 3.141 = 1.273

The circumference of a 4 foot circle is: 12.57 feet(diameter x pi = circumference).

the equation for the circumference of a circle is 2*radius*pi, or since the radius is half of the diameter 2*radius=diameter, we can simplify the equation to the circumference of a circle=diameter*pi

Related questions

Circumference of circle: 4*pi = 12.566 cm to 3 decimal places

circumference = pi*19 = 59.6903 cm rounded to 4 dp

circumference formula is pi(diameter) diameter is 2(radius) radis=4; diameter=2(4)=8 pi(8)=circumference of the circle...this is the EXACT answer plug it into a calculator and you will get 25.1327412287 your welcome ;)

Its diameter is: 25.8/pi = 8.2124 cm rounded up to 4 decimal places

Given a circle with a diameter of 4, the circumference is: 12.6 (diameter x Pi = circumference).

If a circle has a diameter of 4 bananas, it's circumference is 12.564 bananas

The circumference of a 4-inch diameter circle is: about 12.57 inches. (diameter x pi = circumference).

The circumference of the circle that has a diameter of 4 feet is: 12.57 feet

Diameter of 2 cm radius circle is pi x r2 = 3.1416 x 4 cm2 = 12.5664 cm2 Circumference of 2 cm radius circle = pi x 2r = 3.1416 x 4 cm = 12.5664 cm

Area = 12.6 cm2Circumference = 12.6 cm

A circle with a 4-foot diameter has a circumference of about 12.57 feet.

The circumference of a circle is the diameter times pi (3.141) so therefore a 4 meter circumference circle has a diameter of 1.273 m E.g. 4 / 3.141 = 1.273